Gis project management Essay Example | Topics and Well Written Essays - 250 words

Gis project management - Essay Example In other words, successful leaders have passion for leadership. Similarly, project managers ought to have an internal personal drive that inspires and motivates their job performance. It is also noted that leadership is an ongoing and challenging practice. Notably, GIS project management is not short of the same observation. GIS project managers handle multiple tasks, manage team members, interact with clients, and encounter end-users from time to time. All these duties and responsibilities translate to management and leadership challenges evident in GIS projects. Finally yet importantly, Jane Harman’s advice maintains that hard work and failure are key components of the leadership puzzle. This advice relates to GIS project management in the sense that managers will ultimately strive to achieve their project goals. On the same note, not every project translates to automatic success. In this respect, failures should be viewed as learning curves for improved future outcomes. The idea is to promote leadership and management in equal measure as far as project management is

MakerSpaces ( by use PRINCE2 and Design Thinking method ) Term Paper

MakerSpaces ( by use PRINCE2 and Design Thinking method ) - Term Paper Example Then discuss these at your next group meeting. The forms that you are completing in the early weeks of the course, aim to foster and document your initial ideas. Later in the course you can expand on these as you develop the actual Business Case response. The most ideal use for the Makerspace would be to provide a place for students from high school level to the college or university level to be able to pull academic resources for references and be able to share technological projects ideas. This increases the productivity levels of the students by working as a team. The group is for the idea that the demographic study showed a higher percentage of the student population aged between 18 to 25 years in most of the households, than the age group between 25 to 35 years. Thus it would be most ideal if the Makerspace would favor the students’ education, technological research, discussions and projects. Design Thinking (and for that matter good project management) asks you to gather information from your demographic audience – your potential audiences / users. In a design thinking framework, you would interview or observe some of your users and then develop a narrative or story around their project need. Draft TWO stories that use demographic data to help define a user and product of your group’s potential project. For example: â€Å"Teenagers interested in electronics will be able to design and build simple iPhone apps using the provided hardware and instruction and thus develop a basic programming skill that could enhance their application for VET or university application†. The implication in this narrative is a teenage demographic and need for educational support. University students’ focus is based on technological research and projects as opposed to studying. The space will be able to provide technological tools and software tool resources to enable the innovative minds to develop new generation

Asperger's Essay Example | Topics and Well Written Essays - 1000 words

Asperger's - Essay Example There are three main areas where individuals with Asperger’s Syndrome experience difficulties. These include social interaction, social communication and social imagination. These three areas are usually referred as the impairment triads. Individuals with Asperger’s syndrome experience fewer issues with speaking and their intelligence level ranges from average to above average. In general they do not encounter the associated learning disabilities that are often evident amongst individuals with autism but they may experience particular learning issues such as dyspraxia, dyslexia, epilepsy or ADHD. Though it’s a lifetime problem but its symptoms may improve with the passage of time and growing age as the adults with Asperger’s syndrome may learn to comprehend their personal weaknesses and strengths and in turn may enhance their social ability. Moreover, with proper encouragement and support, individuals with Asperger’s syndrome can be enabled to lead an independent complete life (Frith, 1991). According ADDM findings, the prevalence of ASD is more amongst non-Hispanic whites as compared to other ethnicities but with the passage of time the disparity amongst the Hispanics and non-Hispanics has declined significantly with time (Pal, 2013). A huge research body documents that racial and ethnic disparities exist in the diagnosis and intervention plan of ASDs and this may lead to false results depicting in the prevalence of Asperger’s syndrome and other ASDs more in one ethnicity than others. However, the main reason that may be attributed to the increased incidence of Asperger’s syndrome amongst non-Hispanic whites is the institutional factors like clinician prejudices, accessibility of healthcare, symptoms interpretation by families and clinicians as well as the appliance of logical algorithms by clinicians for the detection of ASD. Exploring the causes of Asperger’s Syndrome is still

Language The monster Essay Example for Free

Language The monster Essay The setting makes the reader feel tense because the bad weather in chapter 5 gives the reader the idea that there is a sense that the atmosphere is very ominous and this gives the impression that something bad is going to happen, this type of omen gives the reader a tense feeling because it gives the reader an opportunity to pre-empt the fact that soon the tension will break and it will break into some kind of bad happening. An example of this is when in chapter 5 where there is a slight description of what is happening around the room, and outside the room the rain pattered dismally against the panes, and my candle was nearly burnt out this gives the impression to the reader that something big is soon to happen, because when your candle burnt out, you cant see anything. Pathetic Fallacy is when someone gives inanimate features to an inanimate object, for example if you were to talk to a cushion as though it was a real person. Pathetic Fallacy gives the reader thee impression that Victor within chapter 5 feels very isolated and cannot talk to anyone, this is because he doesnt want to tell anyone about his creation. Language The monster is described as having yellow skin and having a shrivelled complexion and straight black lips this explains that Victors creation has human features but they are presented in an inhuman way. The way that this creation is described is in the way that it isnt human but it is a monster. This connotes that the monster is rather frightening to think about with his yellow skin and to think it is human is very scary. Victor thinks of his monster as scary and intimidating, although in chapter 5 Victors creation doesnt actually do anything to Victor, he does actually run away from him when faced with him. One hand was stretched out, seemingly to detain me, but I escaped and rushed downstairs. This at this point of the story shows us that the monster is a bad thing to behold, that it was intending to seek revenge on Victor, but as the reader we dont know really what is happening. Also we dont actually know if Victors creation is actually as it says in the quote trying to detain me because he may be twisting the readers point of view, because of Victor being the narrator for most of the novel The reader associates monsters and devils with Victors monster because within chapter 5 when the monster is created. In the quote below gives a clear example of the creation being linked with omens and portents, when, by the dim and yellow light of the moon, as it forced its way through the window shutters, I beheld the wretch. This gives the impression that the creation is a sign of evil that is associated by the moon omen, because as well earlier in the chapter Victor claimed that the monsters eyes appeared to be yellow like the moon. The full moon omen is an association with evil because it is supposed that when the full moon comes out all you can hear is the howling of a werewolf and that is a sign of evil The effect of oxymorons helps the reader with the description of Victors monster in chapter 5 for example but these luxuries only formed a more horrific contrast with his watery eyes this quote is saying that victor made tried making his monster with beautiful characteristics but then says that these beautiful characteristics came out wrong with his watery eyes. This explains why Victor escapes from his creation later on in the chapter; he looks at the monsters hideous features and doesnt take into account his interior. Victor within chapter 5 uses the fact that he is the narrator to his advantage, because of this Victor can say anything about the monster he wants and because he is the narrator the reader will believe this one hand stretched out, seemingly to detain me this is a prime example of manipulating the reader at this point, because the narrator says seemingly to detain me everyone believes it. This has an intriguing effect on the audience because the first thing you do as a reader is believe everything that the narrator says , however in this sense the narrator is can be very manipulative and can take advantage of what the reader may know or may not know. This is different to what victor originally thought of his monster, originally Victor thought that his monster would be a good idea because it is an original idea and everyone would praise him for the thing he had created, then if it turned out well then even more praise would come his way. Although I possessed the capacity of bestowing animation, yet to prepare a frame for the reception of it this is showing that victor thought of creating animation as a good idea and that he couldnt wait to put it into practice. Originally Victor thought of his creation as a excellent idea and he wanted to be the inventor of a revolutionary idea, Victor wanted to be like god in a way, however as we find out through chapter 5 he doesnt even want the credit for his invention There is an ammount of symbolism within chapter 5, for instance the idea that Victor created life from nothing is symbolic to religion and how god apparently created everything from nothing from his own power. I collected the instruments of life around me this gi-ves the impression that victor thinks of himself as a god-like person, that maybe he thought after creating this he would be known in history. Conclusion I think that Mary Shelly did meet her aim to curdle the blood and quicken the beatings of the heart because the novel always keeps the reader on edge all of the time, the reader never knows what is coming next. For its time I think that the novel was rather frightening for its time because at that time no-one knew anything that we know in modern day science, so this novel would be what is called sci-fi in the modern day. Today of all the people that still read this novel they still find it a fascinating read because it is quite sci-fi like even to us now, we may now know that you wont make life out of dead bodies using galvanism but it is still interesting.

The Scarlet Gang of Asakusa By Yasunari Kawabata Essay Example for Free

The Scarlet Gang of Asakusa By Yasunari Kawabata Essay INTRODUCTION Yasunari Kawabata June (1899 –1972) was a Japanese writer whose was awarded the Nobel Prize for Literature in 1968 for his auxiliary, poetic and ingeniously colored style of writing. No Japanese author had received the award prior to Kawabata. Besides fiction he also worked as a reporter for Mainichi Shimbun of Osaka. The war and the fact that all of Kawabata’s relatives passed away while he was young had a profound impact on his life. Kawabata committed suicide in 1972. Many speculations have been made about his reasons, which include poor health, a likely failed love affair, or the distress caused by the suicide of his friend Yukio Mishima in 1970. HISTORY OF ASAKUSA Asakusa was mostly a city for commercial enjoyment, but it also preserved its local vivacity. It was this mixture of barefaced pleasure and intrinsic worth that fascinated the throngs of people who came to visit Asakusa. It was surely this fusion that was most lamented, subsequent to the 1923 earthquake, however Asakusa regained its former glory and up to its final days, was able to hold on to somewhat of its former appeal. LIFE IN ASAKUSA Primarily the plot circles around The Scarlet Gang, which is a gang formed by some young people in Asakusa, many gangs like these existed in Asakusa at the time, the gang’s various endeavors are narrated in first person, the narrator himself is never identified by Kawabata, the accounts of the gang’s various activities are used to describe life in Asakusa, the narrator   himself wanders around Asakusa and relates the gang’s activities, the primary focus in the book is not the gang itself but rather the account of the narrator, who moves from one place to another following the Scarlet Gang, the narrator also implies that the gang is involved in illegal actions but does not specify the kind of illegal activities. Only a few characters appear throughout the book which are actually related to the gang. Kawabata’s main purpose clearly was to give an account of life in Asakusa, which he manages to accomplish in a very rough yet poetic manner mostly due to his choice of first person narrative. With its corporeal and sexual appeal, Asakusa prospered in every way, Tanizaki writes that Asakusa’s   attractions included â€Å"plays, operettas, comedies, movies from the West and Japanese productions, Douglas Fairbanks and Onoe Matsunosuke acrobats balancing on balls, bareback rider Naniwa bushi singers, chanters, the merry-go-round, the Hanayashiki Amusement Park, the Twelve Story Tower, shooting galleries, whores, Japanese restaurants, Chinese restaurants, and Western restaurants, the Rairaiken, won ton mein, oysters over rice, horsemeat, snapping turtles, eels, and the Cafà © Paulista.† (Donald Richie 2005 ) Asakusa was also famous for its Opera, where at first some opera was actually sung. An early show Rigoletto, and â€Å"La donna à © mobile† became a success with the locals, later however, the shows became more diverse. This rough and unsightly but vivacious and energetic Asakusa was soon after ruined. The 1923 Kanto earthquake destroyed it, as it flattened much of Tokyo and Yokohama. Among the more well-known catastrophe was the destruction of the Asakusa’s, Twelve Story tower also known as the Cloud Surpassing Pavilion, a building which had become the symbol of Asakusa. The old neighborhood was also destroyed, the sense of belonging to a society, that had attracted so many people was also in no way completely regained. Since it was a city of enjoyment, an amusement capital, a city with one of the best night life in the world, however, rebuilding began at once. And now, representing the new Asakusa, instead of the Twelve Story Tower there is the Subway Tower building, with its observation platform. Kawabata writes that all the floors are in the Osaka style, except the top ones as they have been turned into restaurants. (Tokyo essentials 2006) COMPARASION WITH OTHER URBAN CENTRES Throughout the end of the nineteenth century and beginning of the twentieth, Asakusa was the most important pleasure hub of Tokyo. From the 1840s to the 1940s, it was comparable to Montmartre in Paris, and Alexanderplatz in Berlin (Donald Richie. 2005) This region of Osaka was recognized for trade rather than its customs, commonly mourned after the earthquake. â€Å"Why, it’s gotten just like Osaka,† complains a character in one Kawabata story. Writing about The Scarlet Gang of Asakusa, Kataoka Yoshikaze, writing in 1939, illustrates the new Asakusa as that, â€Å"Human market, where the pleasure resort of the Edo period, the vestiges of the crude, semi-enlightened curiosity of the Meiji era, and the over-ripeness . . . of the present era of capitalist corruption, are thrown together in a forever disordered state or organized in a manner peculiarly like the place itself. Eroticism and frivolity and speed and comic-strip humor; the bare legs of dancing girls and jazzy revues; kiss-dances, foreign girls, ground-cherries and popular songs; the movie, the circus, the fake, dilapidated aquarium and insectariums. (Donald Richie 2005) In The Scarlet Gang of Asakusa Kawabata quotes Soeda Azenbo’s fine depiction: â€Å"In Asakusa everything is flung out in the raw. Desires dance naked. All races, all classes, all jumbled together forming a bottomless, endless current, flowing day and night, no beginning, no end†.( Donald Richie 2005). Asakusa was kept alive by all these varied attractions, one of the most well-liked attraction was the cinema, a type of activity early linked with Asakusa for the reason that the first Tokyo movie house, â€Å"the Denkikan†, had opened there in 1903. Kawabata relates that by 1930, Asakusa had fourteen cinemas. He also affirms, however, that it had even more theaters. In the summer of 1930, his assessment calculated half a dozen vaudeville, or yose, halls, one kabuki theater, a large number of pawnshops and beggars in the city, around eight hundred were living in Asakusa Park, although Kawabata did not trust this social estimation and retained that there were a lot more. (Donald Richie 2005) CONCLUSION Life in Asakusa in its golden period is described by Kawabata as one big party, where the primary concern for its citizens and its visitors was entertainment, in its golden period Asakusa was considered one of the biggest entertainment center in the world and every visitor affirmed this fact, a life full of entertainment was considered normal in Asakusa Kawabata writes about Asakusa at its prewar stage. The Scarlet Gang of Asakusa captures the area in its golden period, when hundreds of people came to visit the city, the variety of attractions like theatre, cinema, restaurants, geisha houses made the city a commercial entertainment center. According to Kawabata â€Å"Asakusa is like a specimen in the Bug House, something completely different from today’s world like a remote island or some African village† (Kawabata 2005) WORKS CITED Yasunari Kawabata (2005) The Scarlet Gang of Asakusa .1st edition Published by University of California Press Donald Richie (2005) â€Å"Foreword: The Scarlet Gang of Asakusa by Yasunari Kawabata†. Accessed on 12th November 2006 from : http://www.ucpress.edu/books/pages/10224/forward1.pdf Tokyo Essentials (2006) â€Å" Asakusa† Accessed on 12th November 2006 from: Asakusa

Coordination Chemistry of Bidentate Ligands Research

Coordination Chemistry of Bidentate Ligands Research Elham Torabi Farkhani Mehrdad Pourayoubi Pavel V. Avdreev Katarina Introduction The coordination chemistry of bidentate ligands has been studied for over thirty years [reference]. The bidentate ligands with phosphoryl and thiophosphoryl groups have been used as effective coordinating agents in the different metal chemistry, in most cases the reports were attributed to bonding between the metal cation and specific Lewis sites on the ligand, itself has number sites with potential to bind metal ions, such as nitrogen, sulfur and oxygen. In order to recent report Hg metal ion is known to have strong affinity for nitrogen and sulfur Lewis sites [reference] which our work here is done bonding between Hg metal atom and sulfur in ligands. A search of the Cambridge Structural Database (CSD) [reference] yielded a data set of 76 purely molecular structures to be used for study of coordination of metal atom with a P(S)[N][O]2 skeleton of ligand. Thus there are a number of reports on molecular structure contain M-S=P fragments with different metal atoms [reference]. An inves tigation of the reports reveals that there isn’t any publication with Hg metal, also we haven’t found any precise study on the effect of all interactions, including coordinating linkages and intermolecular interactions on the structure of Hg(II) complexes with bisthiophosphoryl ligands. Accordingly we have carried out a study on mercury (II) chloride with two different bidentate ligand with general formula (OEt)2P(S)-X-P(S)(OEt)2 where X=1,4-NH-C6H5-NH and piperazine (scheme ). Reaction of two ligand with HgCl2 generated binuclear complex C1 and C2. All compounds were charactrized by IR and NMR (1H, 13C and 31P NMR) spectroscopy and mass analysis. The structure of ligand 1 and two complexes C1 and C2 were determined by X-ray crystallography. Experimental Materials and methods Mercuric chloride (99.5%), O,O†²-diethyl chlorothiophosphate (OCH2CH3)2P(S)Cl (97%), diethylenediamine (97%), 1,4-phenylenediamine (99%) (Aldrich), acetonitrile (99%) and methanol (99%) (Merck) were used as supplied. Acetonitrile was dried with P2O5 and distilled prior to use. The 1H, 13C and 31P NMR spectra were recorded on a Bruker Advance 400 spectrometer at 400, 101 and 162 MHz, respectively. 1H chemical shifts were determined relative to Si (CH3)4. 31P chemical shift was measured relative to 85% H3PO4 as external standard. Mass spectra were performed using a Varian Star 3400 CX mass spectrometer. Infrared (IR) spectra were recorded on KBr disk using a Buck 500 scientific spectrometer. Elemental analysis was performed using a Thermo Finnigan Flash EA 1112 apparatus. X-ray data collection was performed with a Xcalibur, Sapphire3, Gemini diffractometer with graphite monochromator. Synthesis General procedure for the preparation of ligands The ligands were synthesized from the reaction of 2 mmol (OCH2CH3)2P(S)Cl with 1 mmol of the corresponding diamine (diethylenediamine and 1,4-phenylenediamine) in presence of Et3N as HCl scavenger in CH3CN at 0ËÅ ¡ C. After stirring for 24 h, the solvent was evaporated and the residue was washed with distilled water and dried. Chemical structures are shown in scheme 1. Physical and spectroscopic data of the ligands are presented below: 1, 4 [(C2H5O)2P(S)N]2C4H8 (L1): Mp: 105ËÅ ¡ C. Anal. calc. (%) for C12H28N2O4P2S2: C: 36.88; H: 7.17; N: 7.17, S: 16.39, found: C: 37.81; H: 7.16, N: 7.26, S: 15.7. IR data (KBr, cm-1): 2990, 2903, 2864, 1449, 1387, 1339, 1264, 1151, 1098, 1029, 972, 792, 714.1H NMR (400 MHz, DMSO-d6) ÃŽ ´: 1.22 (t,3JH-H= 7.1 Hz, 12H, CH3), 3.12 (m, 8H, C4H8), 7.00 (m, 8H, CH2), 13C NMR (101 MHz, DMSO-d6) ÃŽ ´: 15.57 (d, 3JP-C = 8.08 Hz, 4C, CH3), 44.84 (s, 4C, C4H8), 62.45 (s, 4C, CH2), 31P NMR (162 MHz, DMSO-d6) ÃŽ ´: 73.64. MS (70 eV, EI): m/z (%) = 390 (28), 235 (43), 195 (100), 153 (99), 120 (96), 96 (100), 28 (66). 1, 4 [(C2H5O)2P(S)NH]2C6H4 (L2): Mp: 105ËÅ ¡ C. Anal. calc. (%) for C14H26N2O4P2S2: C: 40.73, H: 6.30, N: 6.78, S: 15.51, found: C: 41.15, H: 6.34, N: 7.01, S: 15.57. IR data (KBr, cm-1): 3268, 2980, 1515, 1479, 1380, 1278, 1218, 1168, 1023, 959, 816, 726, 646. 1H NMR (400 MHz, CD3CN) ÃŽ ´: 1.22 (t,3JH-H= 7.1 Hz, 12H, CH3), 3.12 (m, 8H, C4H8), 7.00 (m, 8H, CH2), 13C NMR (101 MHz, CD3CN) ÃŽ ´: 15.57 (d, 3JP-C = 8.08 Hz, 4C, CH3), 44.84 (s, 4C, C4H8), 62.45 (s, 4C, CH2), 31P NMR (162 MHz, CD3CN) ÃŽ ´: 73.64. MS (70 ev, EI): m/z (%) = 412 (94), 411 (100), 168 (26), 107 (89), 96 (91), 92 (39), 65 (87), 28 (88). General procedure for the preparation of complexes The complexes were prepared by a solutions of 2 eq. HgCl2 in 15 ml of methanol was added drop wise to a solution of 1 eq. the corresponding ligand in 15 ml of methanol. The clear solution was stirred under reflux for 24h. Crystals suitable for X-ray diffraction were obtained from slow evaporation of the solution at room temperature. Physical and spectroscopic data of the complexes are given below:  µ-{1, 4-[(C2H5O)2P(S)N]2C4H8}(HgCl2)2 (C1): Mp: 105ËÅ ¡ C. Anal. calc. (%) for C12H28Cl4Hg2N2O4P2S2: C: 15.41; H: 2.99; N: 2.99, S: 6.84, found: C: 15.67; H: 2.91, N: 2.99, S: 5.74. IR data (KBr, cm-1): 2976, 2895, 1444, 1383, 1344, 1266, 1121, 1037, 967, 804, 772, 702.1H NMR (400 MHz, CD3CN) ÃŽ ´: 1.22 (t,3JH-H= 7.1 Hz, 12H, CH3), 3.12 (m, 8H, C4H8), 7.00 (m, 8H, CH2), 13C NMR (101 MHz, CD3CN) ÃŽ ´: 15.57 (d, 3JP-C = 8.08 Hz, 4C, CH3), 44.84 (s, 4C, C4H8), 62.45 (s, 4C, CH2), 31P NMR (162 MHz, CD3CN) ÃŽ ´: 73.64.  µ-{1, 4 -[(C2H5O)2P(S)NH]2C6H4}(HgCl2)2 (C2): Mp: 105ËÅ ¡ C. Anal. calc. (%) for C14H26Cl4Hg2N2O4P2S2: C: 17.59; H: 2.72; N: 2.93, S: 6.70, found: C: 17.85; H: 2.69, N: 2.93, S: 6.53. IR data (KBr, cm-1): 3211, 2990, 1615, 1512, 1479, 1380, 1274, 1214, 1161, 988, 824, 633. 1H NMR (400 MHz, CD3CN) ÃŽ ´: 1.22 (t,3JH-H= 7.1 Hz, 12H, CH3), 3.12 (m, 8H, C4H8), 7.00 (m, 8H, CH2), 13C NMR (101 MHz, CD3CN) ÃŽ ´: 15.57 (d, 3JP-C = 8.08 Hz, 4C, CH3), 44.84 (s, 4C, C4H8), 62.45 (s, 4C, CH2), 31P NMR (162 MHz, CD3CN) ÃŽ ´: 73.64. Result and discussion IR and NMR spectroscopy Mass spectroscopy The nature of the fragments observed in the mass spectrum often provides as clue to the molecular structure. The fragmentation pathways of ligands 1 and 2 were studied by electron ionization at 70 eV experiment and revealed a molecular ion peak [M]+ at m/z (%) of 390 (28) and 412 (94) for 1 and 2, respectively. The formation of the [M-1] specie from the parent ion of compound 2 was shown to exclusively involve an aromatic hydrogen atom; our results were in good agreement with previously published results. [reference]. The previous paper has been shown that dialkyl alkanephosphonates ROCH2CH2P(O)(OR)2 undergo a McLafferty rearrangement in which a ÃŽ ³ hydrogen from the alkylphosphorous moiety migrates to the phosphoryl group and a molecule of olefin is eliminated from the molecular ion [reference]. The mass spectra of compound 1 and 2 with the same structure have confirmed previously reported mechanism. The peak related to the C2H4 radical-cation with m/z = 28 are shown for two struct ures. Relative peak height = relative abundance as measured from this ion in the compound 1 and 2 are 66 and 88. For the compound 1, the base peak is appeared at m/z = 153 (P(S)(OEt)2) and in the compound 2, the base peak is appeared at m/z = 411 (M-1) fragment. For 1, the main fragmentation is based cleavage of N-P bond then produced A ion and P(S)(OEt)2 with m/z 153. The ion of A following three pathways: (1): A ion can produce a stabilized ion by loss of ethylene via the McLafferty rearrangement which generate the odd mass ion m/z 181 that it operates for ion m/z 181 capable of electronic shift involving a six-membered cyclic transition state in the molecule skeleton given in scheme 1. This will then stabilize to an even mass ion m/z 180 by elimination of an H radical. (2): in this pathway produce the ion at m/z 147 that formed through a three- membered ring as transition state by loss of two molecule of ethanol. The ion of m/z 147 indicating the relatively low stability of the P-O bond to the molecule of A in comparison with that of the P-N bond. (3). The ion at m/z 84 is formed through two step, the first is cleavage of P-N bond then in second step is formed via a 1,2 hydride shift by loss of a molecule of P(S)(OEt)2 [reference]. The same kind of rearrangement is observed for 2 and the main fragmentation is based cleavage of N-P bond then produced molecule ion with m/z 107. Scheme 1. Fragmentation pathway of compound 1 X ray crystallography Complexes of 1 and 2 were crystallized in the orthorhombic space group Pbca Triclinic with space group P, respectively. Crystal data, data collection and structure refinement details are summarized in Table 1 and selected bond lengths and angles are given in Tables 2 and 3. The asymmetric unit of complexes of 1 and 2 consist of one Hg2+ ion, two Cl and one half crystallographically independent ligand (Fig 1). There are two different types of Hg-Cl bonds that included bridge Hg1-Cl2 bond (2.5904(17) Ã… in 1 and 2.4852 (7) Ã… in 2) connect the molecule into one dimensional chain extended along the c axis and terminal Hg1-Cl1 bond (2.369(2) Ã… in 1 and 2.4295 (9) Ã… in 2) linked to adjacent ones by intermolecular interaction into a chain parallel to b axis in 1 and a axis in 2. (Fig 2). So, the Hg atom adopts an Hg[Cl]3[S] coordination environment in this compound with the highly distorted tetrahedral geometry of the Hg(II) center that can be better described as a seesaw structure which two chloride atoms and Hg atom [ Hg1, Hg1, Cl2] is planar, one chloride and sulfur atoms in the pivot position. The different bond distance from the  µ-chloride atoms performed and refer to asymmetry of the halogen bonds (2.5904 (17), 2.6820 (17) Ã… in 1 an d 2.4852 (7), 2.8273 (8) Ã… in 2) and they are compared to the terminal bond of Hg-Cl slightly extended. Some selected bond angles specify the distorted tetrahedral geometry at the Hg(II) center in complex 1 are as follows: Cl1—Hg1—S1 130.91 (7) °, Cl1—Hg1—Cl2 110.98 (7) °, S1—Hg1—Cl2 104.59 (6) °, Cl1—Hg1—Cl2i 108.29 (8) °, S1—Hg1—Cl2i 105.96 (6) ° , Cl2—Hg1—Cl2i 87.47 (5) °, Hg1—Cl2—Hg1i 92.54 (5) ° and P1—S1—Hg1 98.40 (8) °. In ligand L1, the phosphorus atom has a distorted tetrahedral [N]P(S)[O]2 configuration with the bond angles in the range of 101.77 (18) ° [O2—P1—S1] to 115.80 (19) ° [O1—P1—S1]. The P=S bonds of ligand are in a trans orientation is showing respect to each other and that the sulfur atom is coordinated to the mercury center. As a result of coordination to the mercury center, as expected, the P=S bond length (P (1)–S (1) 1.97 (9) Ã…) is slightly longer than that of the free ligand The crystal structure of the complex 1 generated by the O1†¦S=P interaction along c-axis. As a result of these interactions, One-dimensional chain structure is produced. The presence of Hg-Cl and Hg-S moieties in the complex lead to the formation weaker intermolecular C-H†¦Cl-Hg , C-H†¦S-Hg interactions between the neighboring 1D chain along b-axis that create a two-dimensional array in the crystal lattice. Scheme 2. Schematic presentation of bisthiophosphoryl ligands 1 (right), 2 (left) Fig. 1 Asymmetric unit of complex 1(right) and 2 (left) are shown Fig.2 Representation of one-dimensional chain of complex 1 along the c-axis. Colour keys for the atoms: Hg †¦., P orange, O red, N blue, C light grey, H light blue Fig. 3 The title complex 1, with displacement ellipsoids drawn at the 50% probability level Fig. 4 The title complex 2, with displacement ellipsoids drawn at the 50% probability level Table 1. Crystal data, data collection and refinement for complexes 1 and 2 Table 2 Selected bond lengths (AÃÅ'Ã…  ) and angles ( °) for complex 1 Table 3 Selected bond lengths (AÃÅ'Ã…  ) and angles ( °) for complex 2

Longfellows Unique American Hero in Evangeline :: Longfellow Evangeline Essays

Longfellow's Unique American hero in Evangeline      Ã‚  Ã‚   Abstract: Longfellow's portrayal of the American Adam is set apart in that he does not praise this character as a role model for others. The concept of the American Adam is seen in a different light through the depiction of Basil in the narrative poem Evangeline.    R.W.B. Lewis explores the quest of the writers of the American Renaissance to create a literature that is uniquely American in his 1955 text, The American Adam: Innocence, Tragedy, and Tradition in the Nineteenth Century. This is accomplished through the image of "the authentic American as a figure of heroic innocence and vast potentialities, poised at the start of a new history" (Lewis 1). David S. Reynolds explains that these writers are working under the influence of "classic themes and devices" and producing "truly American texts" (5). Lewis convincingly argues "that the new hero" is "most easily identified with Adam before the Fall" (5). Walt Whitman's Leaves of Grass, Nathaniel Hawthorne's The Scarlet Letter, and the works of several others of the period are tied to the creation of this new Adam, but the contribution of Henry Wadsworth Longfellow is largely neglected. Longfellow's portrayal of the American Adam is set apart in that he does not praise this character as a role model for others. The concept of the American Adam is seen in a different light through the depiction of Basil in the narrative poem Evangeline.    Evangeline is the tale of an Acadian woman's journey to find her lost lover after her people are exiled from their native Nova Scotia. Longfellow describes the state of the Acadians after this exile early in the second part of the poem:       Far asunder, on separate coasts, the Acadians landed;    Scattered were they, like flakes of snow, when the wind from the northeast    Strikes aslant though the fogs that darken the Banks of Newfoundland.    Friendless, homeless, hopeless, they wandered from city to city [. . .].    (38-39)    These lines reveal that the Acadians represent a people forced to start their lives anew in a land that is completely foreign to them.